If I set the MTU to automatic (seems to be automaticaly 1500), the default settings of Windows XP are not working. I have to manually change the MTU on every PC. So everytime I have a visitor, I have to change his settings for him to browse correctly the web... Does anyone have any experience of this kind of strange behaviour ? For now I set it manually at 1200 (AOL style) and I have a good result, but I still have to update everyone's computer... I'm on Wanadoo France and never got any problem using other ADSL gateway.